1996A&A...306L..25W

Query : 1996A&A...306L..25W

1996A&A...306L..25W - Astronomy and Astrophysics, volume 306L25-28 (1996/2-2)

The Ca+ abundance of HVC complex C.

WAKKER B.P., VAN WOERDEN H., SCHWARTZ U.J., PELETIER R.F. and DOUGLAS N.G.

Abstract (from CDS):

We report the first detection of Ca II H and K absorption in the high-velocity cloud complex C, the largest HVC. Absorption is detected in the spectra of the quasar PG 1351+640 and of the Seyfert galaxy Mark 290, at velocities of -163 and -137km/s (see fig.2). The implied Ca+ abundances are about 2x10–8, or about 0.01 times the total solar Calcium abundance. This values lies near the middle of the range of values found for other HVCs. The measured abundance will allow firm conclusions about the distance of complex C from the presence or absence of its absoprtion in stellar spectra.

Abstract Copyright: ∼

Journal keyword(s): ISM: abundances - ISM: clouds - Galaxy: halo - radio lines: interstellar

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME HVC Complex A HVC 08 36 +64.4           ~ 138 0
2 HVC 237+17+105 HVC 08 38 -12.           ~ 5 0
3 WV 22 HVC 10 22 +39.2           ~ 15 0
4 BD+38 2182 * 10 49 12.9127247352 +38 00 14.849836668   10.95 11.2     B3V 58 0
5 [H68] M II HVC 10 55 +35.8           ~ 19 0
6 HVC 287+22+240 HVC 11 36 -39.0           ~ 7 0
7 Mrk 205 BLL 12 21 44.0724099888 +75 18 38.241006228   15.64 15.24 14.7   ~ 492 0
8 LB 2522 Sy1 13 01 12.9250750776 +59 02 06.693816732   16.04 15.89     ~ 298 0
9 2XMM J135315.8+634546 Sy1 13 53 15.8311116864 +63 45 45.683126676   14.54 14.28     ~ 404 1
10 HD 121800 * 13 55 15.4510231656 +66 07 00.645739068 8.19 8.92 9.01     B5V 63 0
11 V* BT Dra RR* 14 51 44.6425410768 +60 04 09.038718840   11.76 11.49     kA8hF6 73 0
12 HD 135485 SB* 15 15 45.2566709328 -14 41 34.523913444 7.57 8.05 8.13     B3V 126 0
13 Mrk 290 Sy1 15 35 52.4031021552 +57 54 09.515660508   15.55 15.27     ~ 575 0
14 NAME HVC Complex C HVC 16 34.8 +63 07           ~ 273 1
15 8C 1704+608 Bla 17 04 41.3742408840 +60 44 30.520617000   15.65 15.40 15.30   ~ 782 1

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